Wholesale Best Price Nutritional Supplements Dl-Tryptophan/Dl Tryptophan Powder

Details:

Product Name	Dl-Tryptophan
CAS No	54-12-6
MF	C11h12n2o2
Color	White Powder
Purity	99%

DL-Tryptophan is an α-animo acid that is used in thebiosynthesis of  proteins

DL-Tryptophan contains an α-aminogroup, an α-carboxylic acid group, and a side chainindole, making it a non-polar aromatic amino

acid. Itis essential in humans, meaning the body cannotsynthesize it: it must be obtained from the diet.

DL-Tryptophan is also a precursor to the neurotransmitterserotonin and the hormone melatonin.

Function:

1. Helps support healthy circulatory systems
2. Improves cardiovascular health
3. Lowers cholesterol levels
4. Reduces hypertension
5. Relievesdepression and symptoms of other mental health problems
6. May haveeffects in cancer prevention.

 

Description	White powder	Complies
Identification	IR	Complies
	HPLC	Complies
Heavy metal	≤10ppm	5ppm
Pb	≤3ppm	1.5ppm
Hg	≤0.1ppm	0.05ppm
Cd	≤1ppm	0.2ppm
Loss on drying	≤0.5%	0.12
Residue on lgnition	≤0.1%	0.03
Single impurity	≤0.5%	0.12
Total impurity	≤1.0%	0.29
Total bacteria	≤1000cfu/g	<1000
Yeast and Mould	≤100 cfu/g	<000
E.coli/25g	Absent	Absent
Salmonella/25g	Absent	Absent
Assay	≥99.0%	99.4%
Conclusion	Conforms with USP/EP standards

Julong Xi'an Bio-Tech Co., Ltd. is located in Xi'an City, Shaanxi Province, China. It is a biotechnology enterprise engaged in the research,

development, production and sales of animal and plant extracts, cosmetics, pharmaceutical raw materials and intermediates.

The company has complete experimental facilities. And advanced testing instruments ensure the stability of product quality from all aspects.

The company has a complete sales service system, the products are exported to countries all over the world, and have won a good international

reputation with excellent quality and excellent service.The company has been adhering to the basic principles of "integrity, quality, service,

and win-win" to serve customers, constantly strict requirements, set goals, and implement win-win development.

Q1: Can i get some samples
A: Yes, we can supply the free sample, but the shipping cost be paid by our customers.

Q2: How to start orders or make payments
A: Proforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T, or Paypal or Escrow(Alibaba).

Q3: How to confirm the Product Quality before placing orders
A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product

specifications and requests,we will manufacture the products according to your requests.

Q4:What's your MOQ
A:Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Q5: How about delivery leadtime
A:Delivery lead time: About 3-5 days after payment confirmed. (Chinese holiday not included)

Q6:Is there a discount
A:Different quantity has different discount.

Q7: How do you treat quality complaint
A:First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement

or refund your loss

1. All inquiries will be replied within 12 hours.

2. Dedication to quality, supply & service.

3. Strictly on selecting raw materials.

4. OEM/ODM Available.

5. Reasonable & competitive price, fast lead time.

6. Sample is available for your evaluation & Formulation development.

7. Faster delivery:Sample order in stock and 3-7 days for bulk production.

8.We have strong cooperation with DHL, TNT, UPS, FEDEX, EMS. Or you also can choose your own shipping forwarder

9. After-Sale Service:

1) International Authorized Third-Party Test For The Products You Demand.

2) 30 Days Warranty of quality of goods. 

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